package com.wutianyi.example.tutorial;

import java.io.BufferedReader;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;

import com.wutianyi.example.tutorial.AddressBookProtos.AddressBook;
import com.wutianyi.example.tutorial.AddressBookProtos.Person;

public class AddPerson
{
    // This function fills in a Person message based on user input.
    static Person PromptForAddress(BufferedReader stdin, PrintStream stdout) throws IOException
    {
        Person.Builder person = Person.newBuilder();

        stdout.print("Enter person ID: ");
        person.setId(Integer.valueOf(stdin.readLine()));

        stdout.print("Enter name: ");
        person.setName(stdin.readLine());

        stdout.print("Enter email address (blank for none): ");
        String email = stdin.readLine();
        if (email.length() > 0)
        {
            person.setEmail(email);
        }

        while (true)
        {
            stdout.print("Enter a phone number (or leave blank to finish): ");
            String number = stdin.readLine();
            if (number.length() == 0)
            {
                break;
            }

            Person.PhoneNumber.Builder phoneNumber = Person.PhoneNumber.newBuilder().setNumber(number);

            stdout.print("Is this a mobile, home, or work phone? ");
            String type = stdin.readLine();
            if (type.equals("mobile"))
            {
                phoneNumber.setType(Person.PhoneType.MOBILE);
            }
            else if (type.equals("home"))
            {
                phoneNumber.setType(Person.PhoneType.HOME);
            }
            else if (type.equals("work"))
            {
                phoneNumber.setType(Person.PhoneType.WORK);
            }
            else
            {
                stdout.println("Unknown phone type.  Using default.");
            }

            person.addPhone(phoneNumber);
        }

        return person.build();
    }

    // Main function: Reads the entire address book from a file,
    // adds one person based on user input, then writes it back out to the same
    // file.
    public static void main(String[] args) throws Exception
    {
//        if (args.length != 1)
//        {
//            System.err.println("Usage:  AddPerson ADDRESS_BOOK_FILE");
//            System.exit(-1);
//        }

        AddressBook.Builder addressBook = AddressBook.newBuilder();

        // Read the existing address book.
//        try
//        {
//            addressBook.mergeFrom(new FileInputStream(args[0]));
//        }
//        catch (FileNotFoundException e)
//        {
//            System.out.println(args[0] + ": File not found.  Creating a new file.");
//        }

        // Add an address.
        addressBook.addPerson(PromptForAddress(new BufferedReader(new InputStreamReader(System.in)), System.out));

        // Write the new address book back to disk.
//        FileOutputStream output = new FileOutputStream(args[0]);
    }
}
